The contact box product is made of epoxy resin material with excellent insulation performance and is injection molded by the static mixed APG process commonly used in the market. It adopts high quality testing equipment for voltage withstand and partial discharge, and controls product quality in strict accordance with national standards. The epoxy resin cast insulated contact box is connected to the energized display device for switchgear applications. The contact box is an epoxy resin APG process pressed and molded structure used in various handcart switchgear for insulating isolation and over-connection.
1. The product adopts epoxy resin material
2. It gains high level of insulation, intensity and stability.
3. It provides different specifications based on the size of electric current for the user's choice
4. The contact box is formed by epoxy with APG Technology
5. Indoor installation.6. Altitude: ≤1000m.
7. Ambient temperature: +40°C~5°C.
8. The relative humidity shall not be more than 85%at+20°C ambient temperature.
9. NO gas, vapor or dust that may severely affect the insulation of contact box, no explosive or corrosive substance
| Rated voltage | kV | 12 |
| Rated Current | A | 630/1250/2000/2500/3150 |
| Rated Frequency | Hz | 50/60 |
| Rated short circuit current | kA | 20/25/31.5/40 |
| Rated short time withstand current(4s) | kA | 20/25/31.5/40 |
| Rated peak withstand current | kA | 50/63/80/100 |
| Rated power frequency withstand voltage | kV | 42(fracture 48) |
| Rated lightning impluse withstand voltage | kV | 75(fracture 85) |
| Rated operating sequence | O-0.3S-C&O-180S-C&O | |
| Mechanical life endurance | time | 10000 |
